The Rajya Sabha, constitutionally the Council of States, is the upper house of the bicameral Parliament of India. As of 2023, it has a maximum membership of 250, of which 238 are elected by the legislatures of the states and union territories using single transferable votes through open ballots, while the president can appoint 12 members for their contributions to art, literature, science, and social service. The total allowed capacity is 250 according to article 80 of the Indian Constitution. The current potential seating capacity of the Rajya Sabha is 245, after the Jammu and Kashmir (Reorganisation) Act, 2019, the seats came down to 245. The maximum seats of 250 members can be filled up at the discretion and requirements of the house of Rajya Sabha.

An upper house is one of two chambers of a bicameral legislature, the other chamber being the lower house. The house formally designated as the upper house is usually smaller and often has more restricted power than the lower house. A legislature composed of only one house is described as unicameral.